Star · G5
HD 12648
HD 12648 is a giant star of spectral type G5 in the constellation Cepheus, 582.3 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 10800 |
|---|---|
| Constellation | Cepheus |
| Distance | 582.3 light-years (178.5 pc) |
| Apparent magnitude | magnitude 6.98 |
| Absolute magnitude | magnitude 0.72 |
| Spectral type | G5 |
| Surface temperature | 4,840 K |
| Luminosity | 56.6 L☉ |
| Radius | 11 R☉ |
| Mass | 0.67 M☉ |
| Age | 4.5 billion years |
| Metallicity [Fe/H] | -0.57 |
| Right ascension (J2000) | 2h 18m 59.7s |
| Declination (J2000) | +85° 44′ 10″ |
| Space velocity (relative to the Sun) | 75.0 km/s |
In the sky
Too faint for the naked eye (magnitude 6.98); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 4° S. North of latitude 4° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1444. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 10 million years.
The Sun seen from there
From a planet around HD 12648, the Sun would look like a star of magnitude 11.09, in the direction where our sky has the constellation Octans. It would be invisible to the naked eye.
Planets
- HD 12648 b 134-day orbit · 13.4 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.